I want to buy it, but it doesn't have a differential lock. I'm not sure about its off-road performance.

No locking differential, lacks off-road capability, just high ground clearance.

Why not consider the Prado? I'm selling it.

Differentials can be installed by yourself, whether it's an electric lock or an air lock. But no matter how many locks you have, they're not as good as a lousy winch.